Beginner problem with connect

[Santosh Reddy]

it can be done, (and is done most of times this way), you can create a signal of program class (instead of button signal) and connect to win1 class objects

[lucastonon]

You mean creating a signal for something like a tab? How to do that? :s
Thanks

[Santosh Reddy]

here is an example

//program.h
#include <QtGui>
#include "ui_program.h"
class wnd1;
class program : public QMainWindow, public 
{
	Q_OBJECT;
public:
	explicit program(QWidget * parent = 0);
signals:
	void openButtonClicked(void);
private:
	Ui::program * ui;
	wnd1 * w1;
};
 
//program.cpp
#include "program.h"
#include "window1.h"
 
program::program(QWidget *parent) : 
    QMainWindow(parent),
    ui(new Ui::program()),
	w1(new wnd1(this))
{
    ui->setupUi(this);
	connect(this, SIGNAL(openButtonClicked()), w1, SLOT(test()));
}
 
program::~program()
{
    delete ui;
}
 
//window1.h
#include <QtGui>
class wnd1 : public QObject
{
	Q_OBJECT;
public:
	explicit wnd1(QObject * parent = 0);
public slots:
	void test(void);
};
 
//window1.cpp
#include "window1.h"
wnd1::wnd1(QObject * parent) : QObject(parent)
{
	;
}
 
void wnd1::test(void)
{
	;//do something
}

//program.h
#include <QtGui>
#include "ui_program.h"
class wnd1;
class program : public QMainWindow, public 
{
	Q_OBJECT;
public:
	explicit program(QWidget * parent = 0);
signals:
	void openButtonClicked(void);
private:
	Ui::program * ui;
	wnd1 * w1;
};

//program.cpp
#include "program.h"
#include "window1.h"

program::program(QWidget *parent) : 
    QMainWindow(parent),
    ui(new Ui::program()),
	w1(new wnd1(this))
{
    ui->setupUi(this);
	connect(this, SIGNAL(openButtonClicked()), w1, SLOT(test()));
}

program::~program()
{
    delete ui;
}

//window1.h
#include <QtGui>
class wnd1 : public QObject
{
	Q_OBJECT;
public:
	explicit wnd1(QObject * parent = 0);
public slots:
	void test(void);
};

//window1.cpp
#include "window1.h"
wnd1::wnd1(QObject * parent) : QObject(parent)
{
	;
}

void wnd1::test(void)
{
	;//do something
}

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[lucastonon]

it can be done, (and is done most of times this way), you can create a signal of program class (instead of button signal) and connect to win1 class objects

I don't think you got. What I understood from this quoted post was that if I had a tab widget, I could connect example: tab1 to wnd1(window1.cpp), tab2 to wnd2(window2.cpp); and then every control from the connected tab would signal the connected object, but forget that. I just wanted to do something like:

//program.cpp
program::program(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::program)
{
    ui->setupUi(this);
 
    wnd1 w1;
    w1.Initialize();
 
}
 
//window1.cpp
void wnd1::Initialize() { 
connect(ui->button1, SIGNAL(clicked()), this, SLOT(test1()));
connect(ui->button2, SIGNAL(clicked()), this, SLOT(tes2t()));
connect(ui->button3, SIGNAL(clicked()), this, SLOT(test3()));
connect(ui->button4, SIGNAL(clicked()), this, SLOT(test4()));
connect(ui->button5, SIGNAL(clicked()), this, SLOT(test5()));
// but i don't know how to get a handle the buttons in window1.cpp since 'ui' is from program.cpp
}

//program.cpp
program::program(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::program)
{
    ui->setupUi(this);

    wnd1 w1;
    w1.Initialize();

}

//window1.cpp
void wnd1::Initialize() { 
connect(ui->button1, SIGNAL(clicked()), this, SLOT(test1()));
connect(ui->button2, SIGNAL(clicked()), this, SLOT(tes2t()));
connect(ui->button3, SIGNAL(clicked()), this, SLOT(test3()));
connect(ui->button4, SIGNAL(clicked()), this, SLOT(test4()));
connect(ui->button5, SIGNAL(clicked()), this, SLOT(test5()));
// but i don't know how to get a handle the buttons in window1.cpp since 'ui' is from program.cpp
}

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Sorry for the misunderstanding.

[Santosh Reddy]

// but i don't know how to get a handle the buttons in window1.cpp since 'ui' is from program.cpp

I was trying to tell you that, make the connections in program.cpp not is window1.cpp, move the connect statements to program class ctor (this is a standard way doing).
In program.cpp you will have handles to buttons, and you also know that wnd1 class has an public slot testx()

[lucastonon]

Ok I'll make the connections at program.cpp. But in case in window1.cpp I need to get the text of a text edit I would need to have ui->textEdit1 in window1.cpp, but I can only use that in program.cpp

[Santosh Reddy]

You are still getting it worng, do not create wnd1 variable in program.cpp constructor. (it will not work) also, refer to my post (Post #4) for example to create objects

I can see you are complicating your situation, Please review your code again.

Problem: You are tyring to create a object of program class with in a slot connected to a signal emitted by program class it self, why do you need to do it this wa? I am not sure of your requrements, but you don't want this.

Either create program class object in wnd1 class or create wnd1 class object in program class, but don't do both